claude-code-010426

Claude Code's Entire Source Code Got Leaked via a Sourcemap in npm, Let's Talk About It

How Did This Even Happen?

What's Claude Under The Hood?

BUDDY - A Tamagotchi Inside Your Terminal

KAIROS - "Always-On Claude"

ULTRAPLAN - 30-Minute Remote Planning Sessions

The "Dream" System - Claude Literally Dreams

Undercover Mode - "Do Not Blow Your Cover"

Multi-Agent Orchestration - "Coordinator Mode"

Fast Mode is Internally Called "Penguin Mode"

The System Prompt Architecture

The Full Tool Registry - 40+ Tools

The Permission and Security System

Hidden Beta Headers and Unreleased API Features

Feature Gating - Internal vs. External Builds

Other Notable Findings

Final Thoughts